<!DOCTYPE html>
<html lang="zh_CN">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>四则运算-加减乘除，求余</h1>
</body>
<script type="text/javascript">

    var number1 = 10;
    var number2 = 3;

    var rs;

    // 3.3333333333333335
    rs = number1 / number2;

    rs = parseInt( rs ); // 转整


    alert( rs );





</script>

</html>
